USPTO Examiner CHAPPELL DANIEL C - Art Unit 2135

Recent Applications

Detailed information about the 100 most recent patent applications.

Application NumberTitleFiling DateDisposal DateDispositionTime (months)Office ActionsRestrictionsInterviewAppeal
18751855FORCE PROVISIONING VIRTUAL OBJECTS IN DEGRADED STRETCHED CLUSTERSJune 2024June 2025Allow1110YesNo
18663980TECHNIQUES FOR SEQUENTIAL ACCESS OPERATIONSMay 2024June 2025Allow1310NoNo
18411473MEMORY DEVICESJanuary 2024June 2025Allow1710NoNo
18411940GENERATING VIRTUAL BLOCKS USING PARTIAL GOOD BLOCKSJanuary 2024May 2025Allow1610YesNo
18409661VIRTUAL MANAGEMENT UNIT SCHEME FOR TWO-PASS PROGRAMMING IN A MEMORY SUB-SYSTEMJanuary 2024March 2025Allow1410YesNo
18397851SEMICONDUCTOR DEVICEDecember 2023February 2025Abandon1410NoNo
18529437MEMORY DEVICE ACTIVE COMMAND TRACKINGDecember 2023June 2025Allow1810YesNo
18525967AGGREGATED CONTROL OF REMOVABLE DIGITAL STORAGE MEDIA USING A TRIPLEX DATA STRUCTURING SYSTEMDecember 2023April 2025Allow1720NoNo
18522756SHARING EPHEMERAL STORAGE OF A VIRTUAL MACHINE FOR USE AS VICTIM CACHES FOR USE BY VIRTUAL STORAGE APPLIANCES IN A CLOUD ENVIRONMENTNovember 2023April 2025Allow1710YesNo
18486861EFFICIENTLY STORING DATA IN A CLOUD STORAGEOctober 2023March 2025Allow1710YesNo
18378524FILE SYSTEM AND HOST PERFORMANCE BOOSTER FOR FLASH MEMORYOctober 2023May 2025Allow1920YesNo
18464015UNAUTHORIZED MEMORY ACCESS MITIGATIONSeptember 2023February 2025Allow1710NoNo
18227926SOFTWARE-RAID-PROTECTED BOOT DATA VSAN SYSTEMJuly 2023March 2025Allow2010YesNo
18357732STREAMING ENGINE WITH MULTI DIMENSIONAL CIRCULAR ADDRESSING SELECTABLE AT EACH DIMENSIONJuly 2023August 2024Allow1300YesNo
18350148SWAP MEMORY DEVICE PROVIDING DATA AND DATA BLOCK, METHOD OF OPERATING THE SAME, AND METHOD OF OPERATING ELECTRONIC DEVICE INCLUDING THE SAMEJuly 2023February 2025Allow1920YesNo
18218252Managing Shared Resource Usage in Networked Storage SystemsJuly 2023January 2025Allow1920NoNo
18344591METHOD FOR INSTRUCTION TRANSMISSION FOR MEMORY DEVICES AND STORAGE SYSTEMJune 2023May 2025Allow2220YesNo
18211131SYSTEMS AND METHODS FOR SYNCHRONOUS CELL SWITCHING FOR SCALABLE MEMORYJune 2023June 2025Allow2420YesNo
18210387COMMAND-DIFFERENTIATED STORAGE OF INTERNALLY AND EXTERNALLY SOURCED DATAJune 2023September 2024Allow1510YesNo
18208946DATA PATH STRATEGIES FOR REPLICA VOLUMESJune 2023April 2025Allow2220YesNo
18206809DATA CACHING STRATEGIES FOR STORAGE WITH OWNERSHIP OF LOGICAL ADDRESS SLICESJune 2023December 2024Allow1910NoNo
18203066SCHEME FOR FINDING AND CHECKING WHETHER PAGE UNITS IN ONE BLOCK ARE EMPTY PAGES BY USING FLASH MEMORY DEVICE AND REPORTING FUND RESULT FROM FLASH MEMORY DEVICE TO FLASH MEMORY CONTROLLERMay 2023December 2024Allow1920YesNo
18203143MEMORY ARRAY PAGE TABLE WALKMay 2023December 2024Allow1920YesNo
18037930Snapshotting Pending Memory Writes Using Non-Volatile MemoryMay 2023October 2024Allow1710NoNo
18318416METHOD FOR MANAGING A ZONE OF SENSITIVE DATA IN A FLASH MEMORYMay 2023December 2024Allow1920YesNo
18143691DYNAMIC TAPE STORAGE DEVICE DATA BUFFERMay 2023April 2024Allow1210YesNo
18192175MEMORY MANAGEMENT METHOD AND APPARATUSMarch 2023April 2025Allow2520YesNo
18192293Circuit, Chip, and Electronic DeviceMarch 2023May 2025Abandon2620NoNo
18178887STORAGE DEVICE TRANSLATING LOGICAL ADDRESS ON THE BASIS OF SEQUENTIALITY OF NAMESPACE, AND METHOD THEREOFMarch 2023January 2025Allow2320YesNo
18158992TIERED MEMORY DATA STRUCTURES AND ALGORITHMS FOR DYNAMIC SEARCHING VIA TREAPSJanuary 2023December 2024Abandon2210NoNo
18154755PREPOPULATING COMMANDS AT A STORAGE DEVICE FOR ACCELERATED HOST-ISSUED LIVE MIGRATION OF STORAGE DATAJanuary 2023March 2025Allow2620YesNo
18154434COMPRESSION ACCELERATOR CARD AND METHOD OF SIMULATING HARD DISK MODE TO ACCESS THE COMPRESSION ACCELERATOR CARDJanuary 2023April 2025Allow2720YesNo
18097043SYSTEM AND METHOD FOR NAND MULTI-PLANE AND MULTI-DIE STATUS SIGNALINGJanuary 2023August 2024Allow1920YesNo
18152961DATA PROCESSING CIRCUIT AND METHOD, AND SEMICONDUCTOR MEMORYJanuary 2023October 2024Allow2120YesNo
18005003Thin-Provisioned File Copying Method, Apparatus and Device, and Readable Storage MediumJanuary 2023April 2024Abandon1520NoNo
18145339LOCALIZED AND RELOCATABLE SOFTWARE PLACEMENT AND NOC-BASED ACCESS TO MEMORY CONTROLLERSDecember 2022February 2025Allow2620YesNo
18086180Container Storage Interface Filter Driver-Based Determination of Optimal Storage System to Provide Storage for a Containerized Application DeploymentDecember 2022January 2025Allow2520YesNo
18068179ACCESS CONTROL METHOD AND APPARATUS FOR SHARED MEMORY, ELECTRONIC DEVICE AND AUTONOMOUS VEHICLEDecember 2022March 2025Abandon2720YesNo
18067514STRONG ORDERED TRANSACTION FOR DMA TRANSFERSDecember 2022August 2024Allow2010YesNo
18064373Garbage-collection in Log-based Block Devices with SnapshotsDecember 2022January 2025Allow2520YesNo
18078298RANGE-BASED CACHE FLUSHINGDecember 2022September 2024Allow2120YesNo
18073581MEMORY MANAGEMENT METHOD, MEMORY STORAGE DEVICE AND MEMORY CONTROL CIRCUIT UNITDecember 2022April 2025Allow2930YesNo
17994474STORAGE MEDIUM MANAGEMENT METHOD AND APPARATUS, DEVICE, AND COMPUTER-READABLE STORAGE MEDIUMNovember 2022September 2024Abandon3210NoNo
17985224MEMORY DEVICENovember 2022December 2023Allow1310NoNo
17983458NON-VOLATILE MEMORY-BASED STORAGE DEVICE, DEVICE CONTROLLER AND METHOD THEREOFNovember 2022December 2024Allow2520YesNo
17984211Data Accessing Method and Data Accessing System Capable of Providing High Data Accessing Performance and Low Memory UtilizationNovember 2022March 2024Allow1710NoNo
18053104SYSTEM WIDE MEMORY TECHNOLOGY OVER-PROVISIONINGNovember 2022April 2024Allow1820YesNo
17981145ELECTRONIC DEVICE CONTROLLING AN OPERATION OF A VOLATILE MEMORY AND METHOD FOR OPERATING THE SAMENovember 2022February 2025Allow2830YesNo
17978522STORAGE DEVICE, ELECTRONIC DEVICE INCLUDING STORAGE DEVICE, AND OPERATING METHOD THEREOFNovember 2022April 2024Allow1710YesNo
17978400APPARATUS AND METHOD FOR CACHE INVALIDATIONNovember 2022September 2024Allow2220YesNo
17973034MEMORY PHYSICAL PRESENCE SECURITY IDENTIFICATIONOctober 2022April 2024Allow1810YesNo
17970132ADAPTIVE CONTROL FOR IN-MEMORY VERSIONINGOctober 2022October 2024Allow2420YesNo
18045865HYBRID DIGITAL INFORMATION STORAGE METHOD AND HYBRID DIGITAL INFORMATION STORAGE ARCHITECTUREOctober 2022May 2025Abandon3220NoNo
17952697Data Compression and Decompression for Processing in MemorySeptember 2022March 2024Allow1810YesNo
17906982FIFO MEMORY AND PROCESSING METHOD FOR FIFO MEMORYSeptember 2022December 2024Abandon2720NoNo
17943845STORAGE SYSTEM AND CONTROL METHOD FOR STORAGE SYSTEMSeptember 2022December 2024Abandon2720NoNo
17942452SPLITTING SEQUENTIAL READ COMMANDSSeptember 2022March 2024Allow1910YesNo
17941092SEMICONDUCTOR MEMORY DEVICE CAPABLE OF CONTROLLING A FLOATING STATE OF ADJACENT WORD LINES AND AN OPERATING METHOD THEREOFSeptember 2022June 2024Allow2120YesNo
17941664Accelerator Queue in Data Storage DeviceSeptember 2022July 2024Allow2320YesNo
17903049MEMORY SYSTEM AND COMMAND DETERMINATION METHODSeptember 2022July 2024Allow2320YesNo
17901439ALLOCATING MEMORY AND REDIRECTING MEMORY WRITES IN A CLOUD COMPUTING SYSTEM BASED ON TEMPERATURE OF MEMORY MODULESSeptember 2022July 2023Allow1010YesNo
17900282Optimizing Data Deletion in a Storage SystemAugust 2022May 2024Allow2020YesNo
17899833SEMICONDUCTOR DEVICE AND CONTROL METHODAugust 2022September 2024Allow2420YesNo
17898370MEMORY SYSTEMAugust 2022August 2024Allow2420YesNo
17896914OPERATION BASED ON CONSOLIDATED MEMORY REGION DESCRIPTION DATAAugust 2022February 2024Allow1810YesNo
17894540UTILIZING LAST SUCCESSFUL READ VOLTAGE LEVEL IN MEMORY ACCESS OPERATIONSAugust 2022January 2024Allow1710YesNo
17892951METHOD FOR OPERATING A CACHE MEMORY, CACHE MEMORY AND PROCESSING UNITAugust 2022February 2024Allow1810YesNo
17888919OPTIMIZING MEMORY FOR REPEATING PATTERNSAugust 2022March 2024Allow1910YesNo
17885780Circuitry and MethodAugust 2022August 2024Allow2520YesNo
17884478TEMPERATURE CONTROLLED ZONE CREATION AND ALLOCATIONAugust 2022May 2024Allow2120YesNo
17877190Method and Apparatus for Accessing Storage SystemJuly 2022March 2024Allow2010YesNo
17875805MATRIX TRANSPOSE HARDWARE ACCELERATIONJuly 2022July 2024Allow2320YesNo
17872800DATA PROCESSING METHOD, APPARATUS, AND SYSTEMJuly 2022May 2023Allow910NoNo
17814420DATA REDUCTION FOR STORAGE VOLUMESJuly 2022January 2024Allow1810YesNo
17870096STORAGE CONTROLLER AND ELECTRONIC SYSTEMJuly 2022June 2024Allow2320YesNo
17870139BUFFER ALLOCATION FOR REDUCING BLOCK TRANSIT PENALTYJuly 2022April 2024Allow2120YesNo
17869017Optimizing Backend Workload Processing in a Storage SystemJuly 2022July 2024Allow2420YesNo
17867204DYNAMIC BLOCK CATEGORIZATION TO IMPROVE RELIABILITY AND PERFORMANCE IN MEMORY SUB-SYSTEMJuly 2022December 2023Allow1710YesNo
17867306SUPPORTING SECURE MEMORY INTENTJuly 2022February 2024Allow1810YesNo
17862428METHOD AND APPARATUS FOR PERFORMING DATA ACCESS CONTROL OF MEMORY DEVICE WITH AID OF PREDETERMINED COMMANDJuly 2022April 2024Allow2220YesNo
17840981INFORMATION PROCESSING DEVICE AND METHODJune 2022May 2024Abandon2320NoNo
17830390COMPUTER-READABLE RECORDING MEDIUM HAVING STORED THEREIN CONTROL PROGRAM, INFORMATION PROCESSING APPARATUS, AND METHOD FOR CONTROLLINGJune 2022April 2024Abandon2210NoNo
17746562NEAR MEMORY PROCESSING DUAL IN-LINE MEMORY MODULE AND METHOD FOR OPERATING THE SAMEMay 2022January 2024Allow2020YesNo
17663797TECHNIQUES FOR SEQUENTIAL ACCESS OPERATIONSMay 2022February 2024Allow2120YesNo
17746437SEMICONDUCTOR DEVICEMay 2022April 2024Abandon2311NoNo
17743926HYBRID TERABYTES WRITTEN (TBW) STORAGE SYSTEMSMay 2022March 2024Allow2220YesNo
17743386Full Disk Serpentine Write Path For Tamper-Proof Disk DriveMay 2022December 2023Allow1910YesNo
17743014MEMORY SYSTEM AND OPERATING METHOD THEREOFMay 2022April 2024Allow2320YesNo
17739007Architecture for DRAM Control Optimization Using Simultaneous Bidirectional Memory InterfacesMay 2022November 2024Allow3130YesNo
17728791DRAM WITH COMMAND-DIFFERENTIATED STORAGE OF INTERNALLY AND EXTERNALLY SOURCED DATAApril 2022March 2023Allow1120NoNo
17725992DATA PROTECTION METHOD FOR MEMORY AND STORAGE DEVICE THEREOFApril 2022March 2024Allow2220YesNo
17721144KEY VALUE STORE WITH DISTRIBUTED SHARED ACCESS BY CLIENTSApril 2022March 2025Allow3511YesNo
17765973Hardware AccelerationApril 2022September 2023Allow1820YesNo
17765775METHOD AND APPARATUS FOR CALCULATING TENSOR DATA WITH COMPUTER, MEDIUM, AND DEVICEMarch 2022October 2023Allow1920YesNo
17708677ACCESS UNIT AND MANAGEMENT SEGMENT MEMORY OPERATIONSMarch 2022September 2023Allow1720YesNo
17696360INTELLIGENT PATH SELECTION IN A DISTRIBUTED STORAGE SYSTEMMarch 2022October 2023Allow1920YesNo
17691464FILE STORAGE SYSTEM AND MANAGEMENT INFORMATION FILE RECOVERY METHODMarch 2022April 2024Abandon2620NoNo
17690000RECORDING DEVICE, RECORDING METHOD, RECORDING PROGRAM, AND MAGNETIC TAPEMarch 2022July 2023Abandon1610NoNo
17671775MANAGING EPHEMERAL STORAGE OF A VIRTUAL MACHINE TO PROVIDE VICTIM CACHES FOR USE BY VIRTUAL STORAGE APPLIANCES IN A CLOUD ENVIRONMENTFebruary 2022September 2023Allow1920YesNo
17668312TWO-LEVEL INDEXING FOR KEY-VALUE PERSISTENT STORAGE DEVICEFebruary 2022December 2023Allow2220YesNo

Appeals Overview

This analysis examines appeal outcomes and the strategic value of filing appeals for examiner CHAPPELL, DANIEL C.

Patent Trial and Appeal Board (PTAB) Decisions

Total PTAB Decisions
7
Examiner Affirmed
5
(71.4%)
Examiner Reversed
2
(28.6%)
Reversal Percentile
43.3%
Lower than average

What This Means

With a 28.6% reversal rate, the PTAB affirms the examiner's rejections in the vast majority of cases. This reversal rate is below the USPTO average, indicating that appeals face more challenges here than typical.

Strategic Value of Filing an Appeal

Total Appeal Filings
18
Allowed After Appeal Filing
7
(38.9%)
Not Allowed After Appeal Filing
11
(61.1%)
Filing Benefit Percentile
61.5%
Higher than average

Understanding Appeal Filing Strategy

Filing a Notice of Appeal can sometimes lead to allowance even before the appeal is fully briefed or decided by the PTAB. This occurs when the examiner or their supervisor reconsiders the rejection during the mandatory appeal conference (MPEP § 1207.01) after the appeal is filed.

In this dataset, 38.9% of applications that filed an appeal were subsequently allowed. This appeal filing benefit rate is above the USPTO average, suggesting that filing an appeal can be an effective strategy for prompting reconsideration.

Strategic Recommendations

Appeals to PTAB face challenges. Ensure your case has strong merit before committing to full Board review.

Filing a Notice of Appeal is strategically valuable. The act of filing often prompts favorable reconsideration during the mandatory appeal conference.

Examiner CHAPPELL, DANIEL C - Prosecution Strategy Guide

Executive Summary

Examiner CHAPPELL, DANIEL C works in Art Unit 2135 and has examined 545 patent applications in our dataset. With an allowance rate of 85.0%, this examiner has an above-average tendency to allow applications. Applications typically reach final disposition in approximately 24 months.

Allowance Patterns

Examiner CHAPPELL, DANIEL C's allowance rate of 85.0% places them in the 56% percentile among all USPTO examiners. This examiner has an above-average tendency to allow applications.

Office Action Patterns

On average, applications examined by CHAPPELL, DANIEL C receive 2.00 office actions before reaching final disposition. This places the examiner in the 65% percentile for office actions issued. This examiner issues a slightly above-average number of office actions.

Prosecution Timeline

The median time to disposition (half-life) for applications examined by CHAPPELL, DANIEL C is 24 months. This places the examiner in the 70% percentile for prosecution speed. Prosecution timelines are slightly faster than average with this examiner.

Interview Effectiveness

Conducting an examiner interview provides a +46.5% benefit to allowance rate for applications examined by CHAPPELL, DANIEL C. This interview benefit is in the 93% percentile among all examiners. Recommendation: Interviews are highly effective with this examiner and should be strongly considered as a prosecution strategy. Per MPEP § 713.10, interviews are available at any time before the Notice of Allowance is mailed or jurisdiction transfers to the PTAB.

Request for Continued Examination (RCE) Effectiveness

When applicants file an RCE with this examiner, 35.0% of applications are subsequently allowed. This success rate is in the 73% percentile among all examiners. Strategic Insight: RCEs show above-average effectiveness with this examiner. Consider whether your amendments or new arguments are strong enough to warrant an RCE versus filing a continuation.

After-Final Amendment Practice

This examiner enters after-final amendments leading to allowance in 34.9% of cases where such amendments are filed. This entry rate is in the 44% percentile among all examiners. Strategic Recommendation: This examiner shows below-average receptiveness to after-final amendments. You may need to file an RCE or appeal rather than relying on after-final amendment entry.

Pre-Appeal Conference Effectiveness

When applicants request a pre-appeal conference (PAC) with this examiner, 50.0% result in withdrawal of the rejection or reopening of prosecution. This success rate is in the 41% percentile among all examiners. Note: Pre-appeal conferences show below-average success with this examiner. Consider whether your arguments are strong enough to warrant a PAC request.

Appeal Withdrawal and Reconsideration

This examiner withdraws rejections or reopens prosecution in 69.6% of appeals filed. This is in the 50% percentile among all examiners. Of these withdrawals, 50.0% occur early in the appeal process (after Notice of Appeal but before Appeal Brief). Strategic Insight: This examiner shows above-average willingness to reconsider rejections during appeals. The mandatory appeal conference (MPEP § 1207.01) provides an opportunity for reconsideration.

Petition Practice

When applicants file petitions regarding this examiner's actions, 18.2% are granted (fully or in part). This grant rate is in the 9% percentile among all examiners. Strategic Note: Petitions are rarely granted regarding this examiner's actions compared to other examiners. Ensure you have a strong procedural basis before filing a petition, as the Technology Center Director typically upholds this examiner's decisions.

Examiner Cooperation and Flexibility

Examiner's Amendments: This examiner makes examiner's amendments in 0.0% of allowed cases (in the 9% percentile). This examiner rarely makes examiner's amendments compared to other examiners. You should expect to make all necessary claim amendments yourself through formal amendment practice.

Quayle Actions: This examiner issues Ex Parte Quayle actions in 0.0% of allowed cases (in the 9% percentile). This examiner rarely issues Quayle actions compared to other examiners. Allowances typically come directly without a separate action for formal matters.

Prosecution Strategy Recommendations

Based on the statistical analysis of this examiner's prosecution patterns, here are tailored strategic recommendations:

  • Prioritize examiner interviews: Interviews are highly effective with this examiner. Request an interview after the first office action to clarify issues and potentially expedite allowance.

Relevant MPEP Sections for Prosecution Strategy

  • MPEP § 713.10: Examiner interviews - available before Notice of Allowance or transfer to PTAB
  • MPEP § 714.12: After-final amendments - may be entered "under justifiable circumstances"
  • MPEP § 1002.02(c): Petitionable matters to Technology Center Director
  • MPEP § 1004: Actions requiring primary examiner signature (allowances, final rejections, examiner's answers)
  • MPEP § 1207.01: Appeal conferences - mandatory for all appeals
  • MPEP § 1214.07: Reopening prosecution after appeal

Important Disclaimer

Not Legal Advice: The information provided in this report is for informational purposes only and does not constitute legal advice. You should consult with a qualified patent attorney or agent for advice specific to your situation.

No Guarantees: We do not provide any guarantees as to the accuracy, completeness, or timeliness of the statistics presented above. Patent prosecution statistics are derived from publicly available USPTO data and are subject to data quality limitations, processing errors, and changes in USPTO practices over time.

Limitation of Liability: Under no circumstances will IronCrow AI be liable for any outcome, decision, or action resulting from your reliance on the statistics, analysis, or recommendations presented in this report. Past prosecution patterns do not guarantee future results.

Use at Your Own Risk: While we strive to provide accurate and useful prosecution statistics, you should independently verify any information that is material to your prosecution strategy and use your professional judgment in all patent prosecution matters.